Do you know What is Yakult and Yak Butter. If you are looking for the definition of Yakult and Yak Butter or want to know what is Yakult and Yak Butter?, then this is where you will fetch your answers. Well, in simple terms Yakult is a probiotic dairy product made by fermenting a mixture of skimmed milk with a special strain of the bacterium Lactobacillus casei Shirota. While Yak butter is the butter made from the milk of domesticated yak Both these products are unique in their own ways. Yakult is a Not Available colored dairy product and Yak Butter is Yellow colored. The food gets it color dependent on the ingredients used and the preparation methods employed. Sometimes artificial food colors are added to give the dairy product, a gourmet look. Apart from their color what distinguishes them is their flavor and aroma. Yakult bears Refreshing, Sweet and Tangy flavor with a Milky aroma whereas Yak Butter has Buttery and Salty flavor and a Not Available aroma. The color, flavor and the aroma of these products depict their origin. Yakult originated in Japan, whereas origin of Yak Butter is traced back to Nepal.